Endometriosis of the sigmoid colon, unspecified depth

This code describes the presence of endometrial tissue abnormally located within the wall of the sigmoid colon, where the specific depth of invasion (e.g., superficial, deep) is not documented. This condition can cause various gastrointestinal symptoms, including pain, bleeding, and changes in bowel habits, often exacerbated during menstruation.

Use this code when documentation confirms endometriosis affecting the sigmoid colon, but the provider does not specify whether the involvement is superficial or deep. This typically occurs when diagnostic imaging (e.g., MRI, colonoscopy with biopsy) or surgical findings identify sigmoid colon endometriosis without further detail on its transmural extent.

• Ensure the documentation explicitly states "sigmoid colon" involvement; avoid using for general intestinal endometriosis.
• If the depth of invasion is specified (e.g., superficial, deep), use the more specific N80.52- subcategories.
• Always code any associated symptoms (e.g., chronic pelvic pain, dyschezia) in addition to the endometriosis.